This does NOT work properly.

[Untitled86]

I'm beyond frustrated with this ESP8266WebServer. It works, sometimes. Even just using the plain example code. It's randomly not responding, etc. What a piece of junk.

For example, just load the default page and refresh your browser 10x. It will fail. If it doesn't, try 20x.

[Untitled86]

:P Wow... I am surprised the 8266 Arduino library is so buggy. I eventually sorted this out. I don't want to say how much time I spent on this issue.

In SOFT_AP mode the device fails to respond consistently. Replicate this simply by running a SoftAP example web server and executing "ping youripaddress -t" from the command line. You might see a few requests go through before it starts failing to respond. Sometimes it does respond, just not constantly.

Solve this by adding MDSN to your sketch!?! ...I have no idea, but I swear, this fixes the problem and the 8266 responds EVERY single time.

Just add...

#include <ESP8266mDNS.h>

To the top of your Sketch.

Then add...

WiFi.hostname("ESP8266");

Before your "softAP(ssid, pwd)" line.

And last...

  MDNS.begin("ESP8266");
  MDNS.addService("http", "tcp", 80);

After your "softAP(ssid, pwd)" line.

[nkhlktn]

Interesting Thanks!, you are right it works! Black magic!.
This has been solved in Arduino core 2.4.1 (probably earlier too).